Not Starting, not flooded (maybe)

[RotaryBC]

Update:

I have it starting (warm and from cold), warms to operating temperature, with no problems.

I still don't know were the oil came from, I have ran it to temperature twice now, don't see any new oil leaking.

Questions:

Do I have a good starting low compression engine now?

Where around the oil metering pump should I look (front, bottom, connects to the block..)?

Should I premix to be sure? At what rate should I premix?

I want to save this unicorn!